Is it possible to take a regular washer / dryer and put a coin-operation part on to it? 

But if you want to evaluate RE against stocks, collector cars, coins, etc. or set up an antique booth at the local mall, start a website, or maybe buy another type of business, your decisions would be much more analytical. 

I was also planning to put in a coin laundry room on-site so the electric bill will go up even higher.  

We're told it's in mint condition, but we're estimating $5k as we'd like to install coin-operated laundry (hookups are already there) at the very least.

Unless you want to go the crypto route. 

So for me, SFR vs. small multi is somewhat of a coin toss, so I own both. 

Late 2017/ early 2018, I used my free time to focus on crypto.

The flip side of this coin is that you will not have access to this money until retired, and then you will be paying taxes on the money when taking it out. 

So I go there to get the checks and drain the coins out of the laundry machines, I don’t mind the activity and often meet a tenant or two.

When we renovate and replace bathtubs with showers and en suite laundry with coin op we have seen a very steep drop in applicants with children.As for service animals I will deal with that when I have an applicant with one.